W702406030 - Ink Tank Board (ink cartridge board) Roland RF-640

W702406030 – Ink Tank Board (ink cartridge control board) Roland RF-640

The Roland Ink Tank Board – OEM ref. W702406030 – is the electronic board that acts as the interface between the ink cartridges and the printer’s electronics.

It reads the chips (ICs) and sensors on the cartridges, detects their presence and identification, and reports the ink level to the main board. A faulty board prevents the cartridges from being recognised correctly and may cause the machine to stop due to an ink error.

Genuine Roland (OEM) part, tested and ready for installation. Sold on its own (board), excluding cartridges and cables.

Technical specifications

• OEM reference: W702406030
• Manufacturer: Roland
• Part type: Ink cartridge management board (Ink Tank Board)
• Equivalent part number: W702406031 (VS-640i_01)
• Sub-assembly: ink circuit / cartridge bay
• Origin: genuine Roland part (OEM)
• Shipping: board tested, ready for installation — sold separately

Compatibility & use

• Roland RF-640 / RF-640A
• Roland VS-640i / VS-540i / VS-300i
• Roland RA-640 / RE-640

Function

• Acts as an interface with the ink cartridges (reads IC chips and sensors)
• Detects the presence and identification of each cartridge
• Reports ink levels and low ink status to the machine’s electronics
• Relays cartridge information to the main board

Signs of wear

• Cartridges not detected (‘ink cartridge’ / ‘no cartridge’ errors)
• Incorrect or unreadable ink levels
• Ink error on start-up / machine locked
• One or more ink channels not recognised

Replacing the Ink Tank Board restores cartridge recognition and ink monitoring, and prevents prolonged printer downtime.

♻️ DG Spare Parts – European specialist in spare parts for large-format printers and plotters.